There are
664 mi
from Temecula, CA to Lehi, UT
That's the driving distance. It would take 11 hours 34 mins to go from Temecula, California to Lehi, Utah.
The flight distance (direct flight from Temecula, CA to Lehi, UT) is 558.94 mi.
664 mi = 1,068.97 kms